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Black forged steel union fitting with satin zinc finish

Value Brand

Value Brand 1MNU8 Black Forged Steel Union Class 3000

SKU CH-BCX7-X6AJY

Black forged steel union rated 3000 psi at 72 degrees F with socket weld connection

  • Forged steel construction withstands 3000 psi at 72°F
  • Socket weld connection meets ANSI B 1.20.1 and ASME B 16.11 standards
  • Black satin zinc finish resists corrosion in plumbing systems
  • Class 3000 rating supports high-pressure pipe installations
  • ASTM A105 material certification ensures reliable fitting performance

Product Identity

This is a ZORO SELECT black forged steel union fitting rated for Class 3000 service. It connects 1-1/2 inch pipe using a socket weld joint and conforms to ANSI B 1.20. 1, ASME B 16.11 and ASTM A105 standards. It is supplied new with a black satin zinc finish for corrosion resistance.

Pressure Capacity

The fitting withstands a maximum pressure of 3000 psi at 72 degrees Fahrenheit, providing headroom for high-pressure hydraulic or steam lines. Above that temperature the allowable pressure decreases, so the rating must be derated according to the applicable piping code for hotter service.

Upgrade Context

It replaces threaded or lower-class socket weld unions where leakage or pressure limits are a concern. The jump is justified when system design requires the higher Class 3000 rating and the permanence of a welded joint is acceptable.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $29.99
Pricier than about 69% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameZORO SELECT

Questions about this item

Will the Class 3000 rating on this forged steel union handle the same 3000 psi at 72 Degrees F that my current system runs at?

Yes, the union is rated for a maximum pressure of 3000 psi at 72 Degrees F, matching that operating condition.

How can I confirm the socket-weld joint on this union meets the required standards after installation?

The fitting is manufactured to ANSI B 1.20.1, ASME B 16.11 and SA105, and ASTM A105, so a standard visual and pressure test per those codes verifies compliance.

Does the box include any gaskets or sealant, or must I purchase those separately for the socket-weld connection?

The union is a metal-to-metal socket-weld fitting; no gaskets or sealant are included or required for the weld joint itself.

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